package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.dto.SetmealDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.SetmealDishService;
import com.itheima.reggie.service.SetmealService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

/**
 * @author hyj
 * @create 2023--09--05
 */
@RestController
@Api(tags = "套餐接口")
@RequestMapping("/setmeal")
public class SetmealController {

    @Autowired
    private SetmealService setmealService;

    @Autowired
    private SetmealDishService setmealDishService;


    @Autowired
    private CategoryService categoryService;

    @PostMapping
    @ApiOperation(value = "新增套餐接口")
    @CacheEvict(value = "setmealCache",allEntries = true)
    @ApiImplicitParam(name = "setmealDto",value = "套餐Dto类",required = true)
    public R<String> save(@RequestBody SetmealDto setmealDto){
        setmealService.saveWithDish(setmealDto);
        return R.success("新增套餐成功");
    }

    /**
     * 套餐分页查询
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name){
        //构造分页构造器
        Page<Setmeal> pageInfo = new Page<>(page, pageSize);
        Page<SetmealDto> setmealDtoPage = new Page<>();

        //构造条件构造器
        LambdaQueryWrapper<Setmeal> lambdaQueryWrapper = new LambdaQueryWrapper<>();

        //添加条件
        lambdaQueryWrapper.like(StringUtils.isNotBlank(name),Setmeal::getName,name);

        //添加排序
        lambdaQueryWrapper.orderByDesc(Setmeal::getUpdateTime);

        //分页查询
        setmealService.page(pageInfo,lambdaQueryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo,setmealDtoPage,"records");

        List<Setmeal> records = pageInfo.getRecords();
        List<SetmealDto> list = records.stream().map((item)->{

             SetmealDto setmealDto = new SetmealDto();
            BeanUtils.copyProperties(item,setmealDto);
            Long categoryId = item.getCategoryId();
            //根据id查分类对象
            Category category = categoryService.getById(categoryId);
            if(category != null){
                String categoryName = category.getName();
                setmealDto.setCategoryName(categoryName);
            }
            return setmealDto;
        }).collect(Collectors.toList());

        setmealDtoPage.setRecords(list);

        return R.success(setmealDtoPage);
    }

    /**
     *根据id查询菜品信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<SetmealDto> getById(@PathVariable Long id){
        SetmealDto setmealDto = setmealService.getByIdWithDish(id);
        return R.success(setmealDto);
    }

    /**
     * 修改套餐
     * @param setmealDto
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody SetmealDto setmealDto){
        setmealService.updateWithDish(setmealDto);

        return R.success("修改菜品成功");
    }

    /**
     * 修改批量起售/停售
     * @param status
     * @param ids
     * @return
     */
    @PostMapping("/status/{status}")
    public R<String> sale(@PathVariable int status,String[] ids){
        for (String id : ids){
            Setmeal setmeal = setmealService.getById(id);
            setmeal.setStatus(status);
            setmealService.updateById(setmeal);
        }
        return R.success("修改成功");
    }


    /**
     * 删除套餐
     * @param ids
     * @return
     */
    @DeleteMapping
    @CacheEvict(value = "setmealCache",allEntries = true)
    public R<String > delete(@RequestParam List<Long> ids){
        setmealService.removewithDish(ids);
        return R.success("删除套餐成功");
    }


    /**
     * 根据条件查询套餐数据
     * @param setmeal
     * @return
     */
    @GetMapping("/list")
    @Cacheable(value = "setmealCache",key = "#setmeal.categoryId+'_'+#setmeal.status")
    public R<List<Setmeal>> list(Setmeal setmeal){
        LambdaQueryWrapper<Setmeal> lambdaQueryWrapper = new LambdaQueryWrapper<>();
        lambdaQueryWrapper.eq(setmeal.getCategoryId() != null,Setmeal::getCategoryId,setmeal.getCategoryId());
        lambdaQueryWrapper.eq(setmeal.getStatus()!= null,Setmeal::getStatus,setmeal.getStatus());

        List<Setmeal> list = setmealService.list(lambdaQueryWrapper);
        return R.success(list);
    }
}
